How Wisconsin is trying to save its freshwater mussels from drought and rising heat

Wisconsin is coming back from its worst drought in decades. Along with unusually high temperatures, it's affected wildlife in and around the state's rivers. While spring rains ended the drought, recovery in some places has been slow. PBS Wisconsin's Nathan Denzin reports on one species that's been hit particularly hard. PBS News is supported by - https://www.pbs.org/newshour/about/funders